MUDHIR , A. M., & RASHEED, N. D. (2020). COMPARISON OF ENAMEL ACID ETCHING AND ER, CR: YSGG LASER ETCHING ON THE SHEAR BOND STRENGTH OF STAINLESS STEEL ORTHODONTIC BRACKETS (AN IN VITRO STUDY). Journal of Duhok University, 22(2), 131-142. https://doi.org/10.26682/sjuod.2019.22.2.15